BLACK STONE STATE 12

Oil // district 10 // lease#47761

op: DIAMONDBACK E&P LLC

cum_oil

192k BBL

cum_gas

0 MCF

wells

1

production

2015-12 — 2026-03

peak_month

2016-01

-- production_history

cum_oil: 191,550 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

7,712 BBL/mo

Di (annual)

63.0%

b-factor

0.2

EUR

183,429 BBL

R-squared

0.845

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
2HDIAMONDBACK E&P LLC216,0002015-07-17
EOF // data source: Texas Railroad Commission // 2026